Fill and complete. 填表格,再用它们补全句子。
1.There are too many factories(工厂) here. They make the
_________ dirty.
2.Do you go to school by
_________ or by bike?
3.We should
_________ for animals. They are our friends.
4.Let's do something to
_________ our city beautiful.
5.We live on the
_________. It is our home.
6.I drink a lot of
_________ every day.
7.Please hurry up. We have no time to
_________.
8.We should
_________ more trees and flowers.
9.I
_________ my room twice a week.
10.My favorite
_________ is dog. I have a dog named Karl.